Rogue Chocolate Stout
If you're traveling through NE PA, this is available in 22 oz bottles at Wegman's, visible from I-81.
Gotta say I didn't care for this. I don't know what I was thinking even buying it. It's like putting a spoonful of chocolate syrup into a perfectly good beer. Whatever complexity the stout itself has is lost in the cocoa.
YMMV, as always. And I'm not completely against flavored beers; I just didn't think this was a good match.